A-Class  105 
 
General Resolutions (continued) 
 
If experiencing this 
problem… 
Try this solution… 
No print using direct 
thermal media (labels 
advance normally): 
Test the heat reactivity of the labels then proceed accordingly:  
 
•  If the labels react, increase the HEAT setting via the 
software program or through the menu (see Section 4.2.2); 
or, 
 
•  If the labels do not react, install different media. 
No print using thermal 
transfer media (labels 
advance normally): 
Examine the used ribbon for an image: 
 
•  If an image is on the ribbon, verify that the ribbon was 
correctly installed. (Confirm the coated side by pressing the 
label’s sticky side against the ribbon, where ink will lift from 
the coated side.) Clean the printhead (see Section  5.5.1) 
then correctly install the ribbon (see Section 3.3); or,  
 
If no image is on the used ribbon, try the following: 
 
•  Run a Test label, and if an image printed then ensure that 
the protocol and port settings for the printer and host 
match; see Section 4.2.5. 
 
•  Increase the HEAT setting; see Section 4.2.2. 
 
•  Verify that the media and ribbon combination is compatible; 
see Section 7.2.
 
Nothing prints when 
using a software 
program (Test labels 
print normally): 
Ensure that the printer is at READY then observe the display 
when sending your label format to the printer and proceed 
accordingly: 
 
•   If Receiving Data (see Section 4.1) is not indicated, check 
the protocol, port settings and / or IP Address between the 
printer and host. If networking, check for the appropriate 
Current State Icon. Also, ensure that the interface cable 
meets the requirements of the printer and host, and that it 
is properly connected; or, 
 
•  If Receiving Data is indicated, disable COMMUNICATIONS / 
ESC SEQUENCES; see Section 4.2.5.